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12
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Maintenance and service
Installer reference guide
55
R32 split series
4P751614-2 – 2023.09
12 Maintenance and service
NOTICE
Maintenance MUST be done by an authorised installer or service agent.
We recommend performing maintenance at least once a year. However, applicable
legislation might require shorter maintenance intervals.
NOTICE
Applicable legislation on
fluorinated greenhouse gases
requires that the refrigerant
charge of the unit is indicated both in weight and CO
2
equivalent.
Formula to calculate the quantity in CO
2
equivalent tonnes:
GWP value of the
refrigerant × total refrigerant charge [in kg] / 1000
12.1 Overview: Maintenance and service
This chapter contains information about:
▪
Maintenance safety precautions
▪
The yearly maintenance of the outdoor unit
12.2 Maintenance safety precautions
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING/SCALDING
WARNING
▪
Before carrying out any maintenance or repair activity, ALWAYS switch off the
circuit breaker on the supply panel, remove the fuses or open the protection
devices of the unit.
▪
Do NOT touch live parts for 10 minutes after the power supply is turned off
because of high voltage risk.
▪
Please note that some sections of the electric component box are hot.
▪
Make sure you do NOT touch a conductive section.
▪
Do NOT rinse the unit. This may cause electric shocks or fire.
NOTICE: Risk of electrostatic discharge
Before performing any maintenance or service work, touch a metal part of the unit in
order to eliminate static electricity and to protect the PCB.
12.3 Checklist for yearly maintenance of the outdoor unit
Check the following at least once a year: